engels



H. A. & C. H. ENGELS. & J. WiELAND.

Malt Drier.

t No. 63.374. ,1 Patented April 2, 1867 i @Hitch faire atrnt @fitta E. A-ENGELS, C. H, ENGELS, AND JOHN WIELAND, OF SAN FRANCISCO, GALlFORNlr-t.

Laim Parent No. 63,374, aan April 18er.

MALT-DRYING APPARATUS.

Be it known, towhom it mayv concern, that we, H. A. ENGELS, CHARLES H. ENGELS, and JOHN WI'ELAND, of

San Francisco, countyof San Francisco, and VState of Californimhavc invented a new and improved Malt-Drying Apparatus; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to thesletters of reference marked thereon, and of which- I Figure I represents a view of the apparatus, showing the long side of it, and by leaving out those doors which the operative must open to get access to the two compartments of cach kiln; also a view 'of the interior arrangement; also a view of the end of the apparatus where the top funnel a, with wormp, and picking-shaft q, is constructed. i

Figure II is a front elevation of thc last-mentioned end of thc apparatus, showing, by means of dotted lines, the positions of the important interior parts, like the steam pipes k 7c, the several shafts r 7j, the worm p, the picking-shaft q; also, externally, the funnel a, part of the flue m, the connecting funnel d, the supply pipes for thc current of hot air Z l, the several cam-wheels s s s, attached to the middle shafts 7' 7" r, and the driving-wheel t.

Figure III is a hori-zont-al'section ofthe apparatus, showing the entire perforated bottom of the kiln, under which run the steam pipes 7c lc, as indicated bydotted lines; all rakes of one set are seen, each attached to two beams, which are lifted with the whole set of rakes, and moved forward and backward by the two cranks of each of the three shafts 7' 1'. v v

Figure IV represents a means of passing continuallyT the grains through the apparatus, and over the chute cf into thc b-ox y, and by an elevator, L up again into first funnel a, till the malt is (loner I The naturel of my invention is as follows.:

The apparatus causes a saving of time, space, labor, and fuel, and is a selt`-feeding and turning` kiln, or rather a number of connected kilns, one immediately above the other, each only about twenty-dve inches high, nnd'cach worked by steam power, heated by steam, and heated and ventilated by an artificial current of hot aire '.lhis apparaLus will do away with the unhealthy manual labor of turning of thc grains in the large kilns, generally occupying two stories of a building, andv will furnish, in about one-sixth of the time usually taken by the old process, a much sweeter and better malt of uniform quality. It will prevent a part ofthe grains frombecoming what is termed glnssy, which will amount to a gain ot from tenv'to twenty per cent. of soluble sugar, or of better yielding malt, as a result ofthe rapid rcmoval'of all dampness from the sproutcd grains to be dryed Yon their several kilns in the apparatus@ rihc inventors beg to direct attention to their new mode of stirring or turning the grains, spread as above mentioned, all at the same time, in the several kilns, and by the same set of rakes, without propellingr the grains any further than the extreme reach of one rake, say about ten to twelve inches, (the diameter oi' the revolution of each crank,) that is to say, by changing at the will of the maltster the first-described full revolution of the cranks onl the shafts r r, which move the difercnt'sets of rakes into an oscillating movement which the grains will be only raked forward and backward, and at the same time stirred around and mixed. Of considerable moment, and forming a prominent part of what the applicantsbelicve to be their invention, is the introduction of the hot-air current-over and under the spread grains in their appa= ratus, and also the application in their -malt-lsrilns of the usual steam pipes under the perforated plate bottoms, combined with the current ofhot air forced over and under the grains spread out and turned by their sets of rakes on the perforated bottoms. 'lhcy finally may point to thc facility of constructing of from six to eight of their kilns 4one abov's the other, each `only twentyf1ve inches or more in` height betweenI the oor'and ceiling of the same'story in any building of the usual dimensions.

To enable others skilled in thc art to make and use our invention, we shall proceed t'o describe its construe? tion and operation.V i

The elevator 7L drops the sprouted grains into the funnel a on the top of "theapparatus, where they are passed by the revolvingfworm y) to the picking-shaft q, revolving below saidworm. This Shaft does thefseparating. of clumps of grains matted and grown together, The grains now enter the apparatus and its uppermost kiln. Each kiln consists of two compartments, viz, the upper one, for the grains spread on the usual'perforated at the bottom, where they are turned and propelled by a set of rakes, l, these rahes being moved by three shafts,

A @aan 2 r 1", and their cranks, while the lower compartment z'z', beneath the perforated bottom, serves for receiving the parched sprouts falling through the slits above, and also for introducing the steam-conducting pipes k 7c, both compartments being besides heated and ventilated by a current of air, this air being broliglit 'on bythe distributing pipe l, and carried, in passing the apparatus, through the pipes n n and o o, into a flue, m, at the end of said apparatus. Said current of het air also serves for carrying ot, by its force, the dampness, carbonio acid, sulphurous gases, husks, Etc., and assists in the heating and drying the grains ot' malt. The iloor of each 4compartment z'z'forms, as' is apparent, the roof` and cover of tho kiln next below. The sprouts are swept out and removed by the manual labor of the maltster, who has an access toeach kiln by means of two trap-doors coastructed on one of the long sides ofthe apparatus, as mentioned in Fig. I. The number of kilns, each measuring about twenty-five inches in height, may range from floor to top of the apparatus in numbers depending upon the size and capacity of the latter. Having entered the apparatus by means ofthe elevator, the worm and the picking-shaft, as stated above the spr'outed grains are caught under the iirst rake, and by the next revolution of the cranks propelled to witliin the reach of the second of the same set of rakes, and thus raked along step by step over the perforated'plate c of the rst or upper kiln, till all is covered and the grains drop by means ofthe funnel d upon the perforated plate bottoni c of the seco-nd kiln, to be conducted in thesame manner, but in an opposite direction, to the end of this kiln, whence they will pass through funnel d down to the third kiln on its bottom c, moving in the same; direction with the first, Ste., till all grains are spread over as many perforated kiln-bottoms as may be desirable to have constructed, in accordance to the capacity of the apparatus. The dry malt then passes out ofthe lowest kiln over a chute, ef, into a receiving-box, g, and, if needed, bythe means of the elevator h, up again into the first funnel a, till the malt is donc.

Having thus described the construction and operation of the apparatus, what we claim to be our invention,

and desire to secure by Letters Patent, is-

1'. Themode of malt drying in which the grains are mechanically carried into and spread about the kiln, then therein turned and propelled by rakes, and at lthe same time submitted to 'a current of het air ycombined with the heat of steam pipes, in a manner'substantially as described above.

2. The combination and arrangement of elevator L, Wormp, picking-shaft q,kilns z', rakes b, shafts rr, funnels a a, and d d, steam pipes 7c c, hot-air pipes Z', nu, o o, ue m, and chute ef, in a manner and for the purpose described.

San Francisco, November 16, A. D. 186.6.

H. A. ENGELS, CHARLES II. ENGELS, Witnesses: JOHN WIELAND.

H. BERNHAMER, ADOLPH C. WEBER4 

